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Lyme Disease and Vector-Borne Pathogen Studies

Dr. Howard Ginsberg is studying the transmission of Lyme disease spirochetes in nature using ecological studies of ticks and their vertebrate hosts, and models of spirochete transmission dynamics. Environmental factors that influence tick populations apparently operate on a regional scale. Distribution of vertebrate hosts plays a role in tick More...

  • Image of ticks as lyme disease vectors.

Impacts of Introduced Avian Diseases on the Decline and Extinction of Native Hawaiian Honeycreepers

How is avian pox and malaria impacting native Hawaiian honeycreepers? USGS scientists in Hawaii conduct surveys, develop new diagnostic tools, and test management strategies to understand the impacts of these introduced vector borne diseases on native Hawaiian wildlife.

  • Anianianu from the Alakai Wilderness Preserve, Kauai. Photo credit: USGS

Effect of Malaria on Experimentally Infected Hawaiian Birds

USGS scientists build on the research of ornithologists in the 1800's and 1950's to show whether native Hawaiian birds are in fact highly susceptable to mosquito-transmitted avian diseases such as pox and malaria. The results help explain current population patterns and could potentially aid resource managers in selecting birds for restoration in More...

  • Hawaiian honeycreeper. Photo credit: USGS

Seasonal Prevalence and Transmission of Avian Pox and Malaria in Hawaiian Forest Birds

Many native Hawaiian forest birds have become endangered and extinct, possibly due to introduced avian diseases. Scientists use genetics, long term studies, and sentinel chickens and canaries to learn the prevalence and impacts of malaria and avian pox on native Hawaiian forest birds.

  • Akiapola'au (Hemignathus munroi) from the island of Hawaii. Photo credit: PIERC

West Nile Virus (WNV)

Learn about the West Nile Virus (WNV) from this USGS National Wildlife Health Center's Web page. Contains links to fact sheets and information from other government agencies and organizations.

  • common grackle

Movements of Northern Pintail Ducks with Satellite Transmitters

This study examines the likelihood that migratory birds will transmit highly pathogenic H5N1 avian influenza from Asia to North America, using Northern Pintails (Anas acuta) as a model for viral transmission. Evaluating exchange of avian-borne pathogens between Asia and North America by migratory birds requires an understanding of where birds More...

  • A female Northern Pintail marked with a solar-powered satellite transmitter in Japan.

Migratory Connectivity and Seasonal Interactions of Shorebirds as Potential Vectors of Avian Influenza

This project investigates the role of wild migratory birds in the transmission of highly pathogenic avian influenza (HPAI) H5N1. Scientists will determine the precise migratory routes and use of Asian stopover areas by Alaska-breeding Bar-tailed Godwits. Field surveillance sampling targets HPAIH5N1 and non-H5N1 viruses in Alaska and assess More...

  • Migration tracks of southbound Bar-tailed Godwits determined using satellite telemetry.

Avian Vacuolar Myelinopathy

Disease information about avian vacuolar myelinopathy (AVM). The disease attacks the central nervous system of waterbirds such as bald eagles and American coots. AVM resources are linked to from this site, including fact sheets, media releases, wildlife health bulletins, and other links.

  • Bald eagle with Avian Vacuolar Myelinopathy (AVM). Photo credit: Ron Parker, FWS

Epidemiology of Fish and Wildlife Diseases: Birds

This web page present samples of genetics and genomics research from the USGS Biological Resources Discipline about the epidemiology of avian diseases.

  • A female Northern Pintail marked with a solar-powered satellite transmitter.

Hawaiian Native Birds Research

Introduction to Hawaiian studies of native birds: Hawaiian forest birds, endangered Palila (Loxioides baillieu), endangered Nene (Branta sandvicensis), birds elsewhere in the Pacific, waterbirds and seabirds, and endangered Laysan ducks (Anas laysanensis).

  • Male Laysan Duck. Photo by Evan Jorgenson, USFWS volunteer

Development of a Serological Test for Avian Malaria

Scientists in Hawaii are using genetic and molecular techniques to better screen Hawaiian forest birds for chronic avian malaria infections. Chronically-infected birds may hold the key to identifying disease resistance genes, and may be good candidates for forest bird restoration efforts.

  • Giemsa-stained blood smear. Photo credit: PIERC

Alaska Science Center - Avian Influenza Research

This web resource provides information concerning the on-going Research at the USGS Alaska Science Center on birds and avian influenza (bird flu). The site links to quick facts, on-going research, workshop results, monitoring and surveillance, guidelines on how to safeguard against avian influenza, publications and reports, migratory bird More...

  • Bar-tailed Godwits Roosting